CVE-2017-17051: OpenStack Nova DoS by rebuilding the same instance with a new image multiple times
(updated )
An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.
References
- github.com/advisories/GHSA-vq76-rxx3-4r4r
- github.com/openstack/nova
- github.com/openstack/nova/commit/25a1d78e83065c5bea5d8e0a017fd9d0914d41d9
- github.com/openstack/nova/commit/fed660c1189fdf4159d97badfdc8c5b35ad14f23
- launchpad.net/bugs/1732976
- nvd.nist.gov/vuln/detail/CVE-2017-17051
- review.openstack.org/521662
- review.openstack.org/523214
- security.openstack.org/ossa/OSSA-2017-006.html
Code Behaviors & Features
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